地层损害

兼容性岩心驱替研究探索致密油藏中的地层损害

本文的作者介绍了一项研究结果，该研究检查了阿布扎比陆上油田致密储层中钻井液造成的地层损害机制。

应用于岩心样本的 3D 改造模型技术示例
图 1' 是应用于岩心样本的 3D 改变模型技术的示例。测试后的图像（a）显示了顶部附着的钻井泥饼，这在测试前的图像（b）中不存在。从图像 A 中减去图像 B，留下变化（图像 C）。
”

作者研究了阿布扎比几个陆上油田致密储层中钻井液造成的地层损害机制。进行了三个阶段的相容性岩心驱替，以确定提高碳氢化合物采收率的潜力，并检查重新配制或替代的钻井泥浆和处理液。致密储层岩心上的相容性岩心驱，以及高分辨率量化和可视化，确定了破坏机制，并有助于确定改善碳氢化合物采收率和处理液选择的潜力。

介绍

该运营商检查了阿联酋油田的钻井泥浆性能，包括 Bab、Rumaitha、Qusahwira、Sahil 和 Mender。在高渗透率区域，结果似乎不错，但在低渗透率区域则不然。

脳
SPE_logo_CMYK_trans_sm.png
成为 SPE 会员继续阅读
SPE 会员：请在页面顶部登录才能访问此会员专享内容。如果您还不是会员，但发现 JPT 内容很有价值，我们鼓励您成为 SPE 会员社区的一部分，以获得完全访问权限。
加入SPE
原文链接/jpt
Formation damage

Compatibility Coreflood Studies Explore Formation Damage in Tight Reservoirs

The authors of this paper present results of a study that examined formation-damage mechanisms caused by drilling fluids in tight reservoirs in onshore oil fields in Abu Dhabi.

Example of the 3D-alteration-model technique applied to a core sample
Fig. 1—Example of the 3D-alteration-model technique applied to a core sample. The after-test image (a) shows a drilling mudcake attached at the top, which is not present in the before-test image (b). Image B is subtracted from Image A, leaving behind the change (Image C).
 

The authors examine formation-damage mechanisms caused by drilling fluids in tight reservoirs in several onshore Abu Dhabi oil fields. Three phases of compatibility corefloods were performed to identify the potential of improving hydrocarbon recovery and examine reformulated or alternate drilling muds and treatment fluids. The compatibility corefloods on tight reservoir cores, along with high-resolution quantifications and visualizations, identified damaging mechanisms and helped identify potential to improve hydrocarbon recovery and treatment-fluid options.

Introduction

The operator examined drilling-mud performance for UAE fields including Bab, Rumaitha, Qusahwira, Sahil, and Mender. Results appeared to be good in high-permeability zones but not in lower‑permeability zones.

×
SPE_logo_CMYK_trans_sm.png
Continue Reading with SPE Membership
SPE Members: Please sign in at the top of the page for access to this member-exclusive content. If you are not a member and you find JPT content valuable, we encourage you to become a part of the SPE member community to gain full access.
Join SPE